The just-released July numbers show that among financial institutions that have offered mobile banking for at least one year, “the average month-over-month (member usage) growth rate is 4.19%. The best-in-class number is 11.56% with several banks and (credit unions) topping 10%,” according to Malauzai in Austin, Texas.

Users “are flocking” to mobile banking, per Malauzai, which reported: “Best in class banks and credit unions are reporting between 37% and 39% of their total households or deposit accounts are using the mobile banking SmartApp. The average is between 17% and 21%.”

An inexplicable factoid in the data is that iOS (Apple) users are dramatically overrepresented, accounting for 66% of all registered end users, despite the fact that Android-based devices substantially outsell iOS.

Another quirky finding pertains to when Android users do outnumber iOS: “The only time there are more Android end-users using mobile banking than iOS end-users is between 2 a.m. and 3 a.m. This is one of many indicators that Android end users are different. Could they be younger? Not sure, but they sure are up in the middle of the night!” reported Malauzai.

Mobile banking apps users also are engaged. Reported Malauzai: “users log in an average of 3.7 times per week with an average session duration of 1 minute, 14 seconds. This is up from a year ago where the average was 3.15 sessions per week and 1 minute, 5 second sessions.”